The Magic Tube

I rode the bus home today after working in the campus studio for five hours. As I set in my little bus seat all leaden down with my various bags of art supplies and books and my pretty orange drafting tube I felt a little tap on my shoulder. I turned around to look into the eyes of quite possibly the most beautiful blue-eyed little angel I have ever seen.
"What's in your tube?" she asked. "Is it a picture?"
I smiled.
I thought about it.
"Yes, it is a picture. It is a picture of 20 hours of my life that I will never get back."
And I'm not even finished with it.